TABLE 1.

Percent agreement of YeastOne colorimetric MICs of six antifungal agents with reference MIC ranges^a

NCCLS QC isolate	Antifungal agent	Reference MIC range (μg/ml) at incubation time of:		% YeastOne MICs within range at incubation time of:
		24 h	48 h	24 h	48 h
C. krusei ATCC 6258	Caspofungin	0.12-1	0.25-1	100	96
	Posaconazole	0.06-0.5	0.12-1	100	96
	Ravuconazole	0.06-0.5	0.25-2	100	100
	Voriconazole	0.06-0.5	0.25-1	100	100
	Fluconazole	8-64	16-128	100	100
	Amphotericin B	0.5-2	1-4	100	100
C. parapsilosis ATCC 22019	Caspofungin	0.25-1	0.5-4	100	100
	Posaconazole	0.06-0.25	0.06-0.25	100	100
	Ravuconazole	0.016-0.12	0.03-0.25	85	96
	Voriconazole	0.016-0.12	0.03-0.25	100	100
	Fluconazole	0.5-4	1-4	96	22
	Amphotericin B	0.25-2	0.5-4	100	100

^aTests were performed 27 times for each QC isolate in three centers.